* u64-indexes:
  [box] Add kostja's comments and simplify field_compare.
  [box] Correctly compare multicolumn indeces with NUM64 keys.
  [box] Remove experemental code.
  [box] Add support of u64 hash index.
  [box] Rename khash structures in more consistent way.
  [box] Add suport of u64 hash indeces.

Delete a temporary file used for build.

Fix 'make test' failure after pull from master.

Test runner: provide better comments, add a summary
of failing tests when running with --force.
Change indentation.

* public/memcached-expire-stat:
  [box] Enable accidently disabled expire in memcached mode.
  [box] Repair memcached statistic. 	* Enable statistic collection. 	* Add counter of expire rate.
  [core] Better param name in stat_register()
  [core] Fix bug causing last stat value being ignored.

* public/core-cfg_get:
  [core] cfg_get: return 1 if param is missing in config file
  [core] add --cfg_get option

Merge remote branches 'public/fiber-raise', 'public/core-pull_from_remote_exit' and 'public/core-remote_state_to_header'

* public/fiber-raise:
  [core] Add ability to raise an exception in the other fiber.

* public/core-pull_from_remote_exit:
  [core] exit from 'remote hot standby' fiber in case of EXIT_FIBER exception

* public/core-remote_state_to_header:
  [core] move remote_state to log_io header

Implement
https://blueprints.launchpad.net/tarantool/+spec/tarantool-test-runner.

This commit adds an implementation of test running framework
(test-run.py), and a simplistic interactive client for
the administartive console of tarantool (admin.py).

A prototype of the first test suite is added in
directory test/box.

"run" is a convenience symlink to test-run.py.

This commit also adds "make test" goal to the
top-level makefile.

	* Enable statistic collection.
	* Add counter of expire rate.

Going forward, 'test' will contain tests. Do not delete
it in make clean.

Make links to launchpad proper urls.
Fix spelling.

Update TODO file in the source directory:
 - migrate incomplete items to launchpad
 - remove completed tasks
 - add a reference to launchpad.

[box] [client] [perl] Fix _validate_params() not to clobber a param. Fix update/splice for compatiblity with older perls.

https://blueprints.launchpad.net/tarantool/+spec/pool-palloc-pool

* unstable: (140 commits)
  [box] add unique property to memcached index
  [core] repair statistics
  [core] remove limit of 4MB packet size between parent and child
  [core] mention about GNU make requirement
  [core, box] write cookie in span too
  [box] fix snap printing
  [core] fix memory leak when saving snapshot
  [core] partially rollback 8cb4a2b4, make incremental builds work again
  [core] repair reading of v04 snaps
  [core] update confetti: added property 'required'
  [core] flush stdio buffers when writing wal
  [feeder] support for tagged rows
  [core] remove cfg.h file hack, tweak scripts/indent
  [core] fix bug: cookie is 64 bit
  [core] default tags are negative
  [core, box] row dispatch based on tag
  [box] [client] [perl] hash_by
  [core, box] wal_write and snapshot_write row now explicitly require tag and cookie
  [core, box] support for cookie in WAL
  [core] refactor read_u{8,16,32,4}
  ...